The latest study involved accurately measuring brain activity using an array of electrodes placed under the skull of some epileptic patients as they prepare for surgery.
Eventually, the researchers found that brain connections were faster and faster over time, from two meters per second in children to four to four meters per second in people in their thirties and forties.
At the same time, the frontal lobe, which is responsible for thinking and performing tasks, has developed longer than the region that controls movement.
The team concluded that the brain begins to deteriorate between the ages of 30 and 40; this was much later than previously thought, at the age of 25. This finding is important because it highlights the importance of maintaining cognitive health and the brain’s ability to adapt and change throughout life.
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